Replace send/steer/inject with one Agent.send primitive over the (target × wakeup) matrix; followup/steer/inject become fixed-preset alias methods on the now-abstract Agent class. Coalesce context/message into user/message (injected context is a non-user source). Replace agent/queued with agent/inbox/enqueue/dequeue/discard, add cancel keepInbox, and add a FIFO-conservation invariant.
context/ — request-context extensions
Product plugins that add model-visible request context without defining a tool. workspace-context is included by the default dsh-agent-spine-demo bundle and can be disabled through bundle config; time-context is opt-in, while the standard TUI and ACP bundles compose session-reference explicitly.
| Package | Role | ctx key |
|---|---|---|
session-reference/ |
Bounded current-surface snapshots of other sessions | ctx.sessionReferences |
time-context/ |
Durable per-step current time and elapsed-time context | (none) |
workspace-context/ |
AGENTS.md/CLAUDE.md workspace context loader |
(listens on agent/session-prefix + tools/post-execute) |
The workspace-context decision record explains its per-agent/session isolation and lifecycle split.